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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Operating activities: |  |
Net income | $ 144,975,000 | $ 1,419,000
Adjustments to reconcile net income to net cash provided from operating activities: |  |
Deferred income tax expense | 50,581,000 | 5,688,000
Depletion, depreciation and amortization and impairment of proved properties | 179,986,000 | 138,718,000
Abandonment and impairment of unproved properties | 5,413,000 | 12,659,000
Derivative fair value (income) loss | (233,175,000) | 61,731,000
Cash settlements on derivative financial instruments | 99,929,000 | 24,834,000
Allowance for bad debt | 400,000 | 0
Amortization of deferred financing costs and other | 1,657,000 | 1,807,000
Deferred and stock-based compensation | 476,000 | 14,112,000
(Gain) loss on the sale of assets | (122,099,000) | 189,000
Gain on early extinguishment of debt | (12,923,000) | 0
Changes in working capital: |  |
Accounts receivable | 84,345,000 | 134,006,000
Inventory and other | (4,432,000) | (4,763,000)
Accounts payable | 18,660,000 | (30,431,000)
Accrued liabilities and other | (89,287,000) | (99,275,000)
Net cash provided from operating activities | 124,506,000 | 260,694,000
Investing activities: |  |
Additions to natural gas and oil properties | (129,962,000) | (190,014,000)
Additions to field service assets | (896,000) | (576,000)
Acreage purchases | (10,811,000) | (23,646,000)
Proceeds from disposal of assets | 1,059,000 | 332,000
Purchases of marketable securities held by the deferred compensation plan | (7,648,000) | (4,259,000)
Proceeds from the sales of marketable securities held by the deferred compensation plan | 8,393,000 | 6,204,000
Net cash used in investing activities | (139,865,000) | (211,959,000)
Financing activities: |  |
Borrowings on credit facilities | 543,000,000 | 566,000,000
Repayments on credit facilities | (463,000,000) | (614,000,000)
Issuance of senior notes | 550,000,000 | 0
Repayment of senior or senior subordinated notes | (580,099,000) | 0
Dividends paid | 0 | (5,023,000)
Treasury stock purchases | (22,548,000) | 0
Debt issuance costs | (8,538,000) | 0
Taxes paid for shares withheld | (1,554,000) | (3,161,000)
Change in cash overdrafts | (1,933,000) | 7,218,000
Proceeds from the sales of common stock held by the deferred compensation plan | 13,000 | 174,000
Net cash provided from (used in) financing activities | 15,341,000 | (48,792,000)
Decrease in cash and cash equivalents | (18,000) | (57,000)
Cash and cash equivalents at beginning of period | 546,000 | 545,000
Cash and cash equivalents at end of period | $ 528,000 | $ 488,000

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- Definition The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The net cash inflow or outflow from the excess drawing from an existing cash balance, which will be honored by the bank but reflected as a loan to the drawer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3098-108585 + Details
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- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References No definition available. + Details
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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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